The obesity-associated FTO gene encodes a 2-oxoglutarate-dependent nucleic acid demethylase.
The obesity-associated FTO gene encodes a 2-oxoglutarate-dependent nucleic acid demethylase.
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DOI:
10.1126/science.1151710
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发表时间:
2007-11-30
期刊:
影响因子:
--
通讯作者:
Schofield CJ
中科院分区:
文献类型:
--
作者:
Gerken T;Girard CA;Tung YC;Webby CJ;Saudek V;Hewitson KS;Yeo GS;McDonough MA;Cunliffe S;McNeill LA;Galvanovskis J;Rorsman P;Robins P;Prieur X;Coll AP;Ma M;Jovanovic Z;Farooqi IS;Sedgwick B;Barroso I;Lindahl T;Ponting CP;Ashcroft FM;O'Rahilly S;Schofield CJ
Variants in the FTO (fat mass and obesity associated) gene are associated with increased body mass index in humans. Here, we show by bioinformatics analysis that FTO shares sequence motifs with Fe(II)- and 2-oxoglutarate–dependent oxygenases. We find that recombinant murine Fto catalyzes the Fe(II)- and 2OG-dependent demethylation of 3-methylthymine in single-stranded DNA, with concomitant production of succinate, formaldehyde, and carbon dioxide. Consistent with a potential role in nucleic acid demethylation, Fto localizes to the nucleus in transfected cells. Studies of wild-type mice indicate that Fto messenger RNA (mRNA) is most abundant in the brain, particularly in hypothalamic nuclei governing energy balance, and that Fto mRNA levels in the arcuate nucleus are regulated by feeding and fasting. Studies can now be directed toward determining the physiologically relevant FTO substrate and how nucleic acid methylation status is linked to increased fat mass.
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影响因子:
56.9
作者:
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通讯作者:
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McCarthy, Mark I.
DOI:
10.1073/pnas.0403489101
发表时间:
2004-09-28
影响因子:
11.1
作者:
Delaney, JC;Essigmann, JM
通讯作者:
Essigmann, JM